Title:
DEVICE FOR VEHICLE RUNNING TEST
Document Type and Number:
WIPO Patent Application WO/2008/018590
Kind Code:
A1
Abstract:
A device for a vehicle running test, in which, during a running test, torque equivalent
to running resistance N that is a value corresponding to running resistance on
an actual road is applied to rollers (3) on which wheels (2) of an automobile (1)
are placed. During the running test, an actual friction coefficient μch
between the wheels (2) and the rollers (3) is obtained, and the running resistance
N is corrected so that the friction coefficient μch and a friction coefficient
μj on the actual road calculated based on a slip ratio of the wheels (2) relative
to the rollers (3) are equal to each other. This causes that, when torque equivalent
to the corrected running resistance N is applied to the rollers (3), running resistance
that the automobile (1) receives from the rollers (3) to be closer to running resistance
of the automobile (1) on the actual road. This prevents drive force that the automobile
(1) produces during the running test from varying from driver force obtained
in running on the actual road.
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Inventors:
SATONAKA TAKAO (JP)
NARUMI YASUMASA (JP)
NARUMI YASUMASA (JP)
Application Number:
PCT/JP2007/065726
Publication Date:
February 14, 2008
Filing Date:
August 10, 2007
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MEIDENSHA ELECTRIC MFG CO LTD (JP)
SATONAKA TAKAO (JP)
NARUMI YASUMASA (JP)
MEIDENSHA ELECTRIC MFG CO LTD (JP)
SATONAKA TAKAO (JP)
NARUMI YASUMASA (JP)
International Classes:
G01M17/007
Foreign References:
| JPH0112588A | ||||
| JPH06258193A | 1994-09-16 | |||
| JPH0339632A | 1991-02-20 | |||
| JPS5687838A | 1981-07-16 | |||
| US6360591B1 | 2002-03-26 |
Attorney, Agent or Firm:
ONDA, Hironori (Ohmiya-cho 2-chomeGifu-shi, Gifu 31, JP)
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